zlacker

Only if you look at these ridiculous benchmarks serving "hello world" and json encoding/decoding a basic dataset. The real limits to scale is I/O. CPU I/O, Storage I/O, Network I/O. JVM doesn't give you an edge on it. Once your app starts doing useful non localized work, the advantage of JVM is 2-3x at best.

>>segmon+(OP)
No, I'm looking at Twitter's numbers in production. Before and after very much tells the tale -- and it was mostly the same engineers, so it wasn't "oh well you had the B team doing Rails and the A team doing JVM code" or whatever other excuse you want to look for. Microbenchmarks aren't the end-all-be-all, but you see the same story there.